Ecological characteristics of Vrishabhavathy River in Bangalore (India)

被引：47

作者：

Ahipathy, MV ^{[1
]}

Puttaiah, ET

机构：

[1] Peoples Educ Soc Coll, Dept Chem, Bangalore 560050, Karnataka, India

[2] Kuvempu Univ, Post Grad Dept Environm Sci, Shankaraghatta, Karnataka, India

来源：

ENVIRONMENTAL GEOLOGY | 2006年 / 49卷 / 08期

关键词：

ecology; sewage; wastewater; physico-chemical parameters; correlation; self-purification; Vrishabhavathy; India;

D O I：

10.1007/s00254-005-0166-0

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

River Vrishabhavathy, a tributary of Cauvery River was studied for 12 physico-chemical parameters at four sites over a distance of 50 km for a period of 2 years (1999-2001) at monthly intervals. Water was faintly alkaline, with pH showing negative correlation with temperature. The dissolved oxygen content increased downstream with negative correlation to biological oxygen demand (BOD), chemical oxygen demand (COD) and turbidity. Bicarbonate alkalinity was very low compared with carbonate alkalinity. Carbonate alkalinity, total hardness, total dissolved solids, total suspended solids, electrical conductivity, BOD and COD decreased downstream, with an upward trend in the middle reaches due to the introduction of raw sewage. The seasonal and yearly trends are also discussed. The river is a sewer collector undergoing self-purification.

引用

页码：1217 / 1222

页数：6